Pachymatisma johnstonia

Elephant's hide sponge

Pachymatisma johnstonia is a massive sponge which may reach 40 cm in diameter and 10 cm in
height. It has rounded margins and elongate lobes with a very smooth surface. Oscules are gathered in linear groups
on the top of the lobes. Colour varies from greish white to dark purplish grey. It has a firm rubbery
consistency.
It is attached to rocks, from swallow waters to depths up to 300 meters, in the English Channel, the Atlantic ocean
from the North of the British Isles down to Spain and in the Mediterranean Sea.

How to cite this page in publications

Bay-Nouailhat W., April 2006, Description of Pachymatisma johnstonia, Available on line at http://www.european-marine-life.org/02/pachymatisma-johnstonia.php, consulted on 19 November 2018.Also consult : Terms of use and copyrights